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HDM8000 Mount

Hercules HDM800 is the strongest and most rigid mount in it's category. 


Harmonic drives reducer have huge advantages compare to worm gears and direct drives mounts :

  • Much highier torque 800Nm rated (80kg@1meter off balance) on RA and DEC

  • Work without the need for counterweight

  • Highier payload capacity, 800Nm average max, 3200Nm peak

  • No maintenance or lubrification needed

  • Much longer life cycle if used at rated torque

  • Virtually Zero Backlash

  • Can hold 2 (or more) telescopes of different weight without having to care about balancing

  • Can be setup in Equatorial or AltaZ by using different pier

  • Our HDM series is all integrated, so you just have to bring the mount and connect it.

  • High resolution BLDC 3 phases Servo motors (these are big for less reduction)

  • PEC and Point XP pointing model are available for the best performances

  • Hi Resolution Absolute encoder on both axis available (Option)



Drive type

Harmonic Drive (RA/DEC)


Equatorial or AltaZ

(Pier optionnal)

Insrtument capacity

2 X 115kg OTAs

230KG (506lbs) total

Pointing accuracy

20 arc/seconds (Standard)

10 arc/seconds with on-axis      encoders (option)


3 phases Brushless Servo

Motors (standard)

On-axis encoders (Option)

Control system

Digital Sitech Servo II

ASCOM compatible

Control Software

SiTech + PointXP


Virtually Zero

  Overall Length  

533mm (21in)

  Overall Width  

258mm (11 1/2in)


40kg (88lbs)


Aluminum, Stainless steel and carbon fiber

Operating voltage

28V-9 amp power supply

  • Harmonic Drives reduction, maintenance free

  • 800 Nm torque (can hold up to 80kg@1meter off balance)

  • Can hold two 115kg telescopes, Total: 230kg (506lbs)

  • On-axis encoders for both axis (Option)

  • High resolution Brushless 3 phases Servo motors with encoders on each axis

  • Pier can be made with your specs for equatorial or azimutal position (option)

  • Completely integrated system inside the mount,

  • Just need power and USB to run

  • Can support Losmandy D or PW saddle plate (2 saddles)

Price : 19 995$

Technical drawing

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